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Commit	Line	Data
	1	// -- mode: cpp; mode: fold --
	2	// Description /{{{/
	3	// $Id: file.cc,v 1.9.2.1 2004/01/16 18:58:50 mdz Exp $
	4	/* ######################################################################
	5
	6	File URI method for APT
	7
	8	This simply checks that the file specified exists, if so the relevent
	9	information is returned. If a .gz filename is specified then the file
	10	name with .gz removed will also be checked and information about it
	11	will be returned in Alt-*
	12
	13	##################################################################### */
	14	/}}}/
	15	// Include Files /{{{/
	16	#include <config.h>
	17
	18	#include <apt-pkg/acquire-method.h>
	19	#include <apt-pkg/error.h>
	20	#include <apt-pkg/hashes.h>
	21	#include <apt-pkg/fileutl.h>
	22	#include <apt-pkg/strutl.h>
	23
	24	#include <sys/stat.h>
	25	#include <unistd.h>
	26	#include <apti18n.h>
	27	/}}}/
	28
	29	class FileMethod : public pkgAcqMethod
	30	{
	31	virtual bool Fetch(FetchItem *Itm);
	32
	33	public:
	34
	35	FileMethod() : pkgAcqMethod("1.0",SingleInstance \| LocalOnly) {};
	36	};
	37
	38	// FileMethod::Fetch - Fetch a file /{{{/
	39	// ---------------------------------------------------------------------
	40	/* */
	41	bool FileMethod::Fetch(FetchItem *Itm)
	42	{
	43	URI Get = Itm->Uri;
	44	std::string File = Get.Path;
	45	FetchResult Res;
	46	if (Get.Host.empty() == false)
	47	return _error->Error(_("Invalid URI, local URIS must not start with //"));
	48
	49	// See if the file exists
	50	struct stat Buf;
	51	if (stat(File.c_str(),&Buf) == 0)
	52	{
	53	Res.Size = Buf.st_size;
	54	Res.Filename = File;
	55	Res.LastModified = Buf.st_mtime;
	56	Res.IMSHit = false;
	57	if (Itm->LastModified == Buf.st_mtime && Itm->LastModified != 0)
	58	Res.IMSHit = true;
	59	}
	60
	61	// See if we can compute a file without a .gz exentsion
	62	std::string::size_type Pos = File.rfind(".gz");
	63	if (Pos + 3 == File.length())
	64	{
	65	File = std::string(File,0,Pos);
	66	if (stat(File.c_str(),&Buf) == 0)
	67	{
	68	FetchResult AltRes;
	69	AltRes.Size = Buf.st_size;
	70	AltRes.Filename = File;
	71	AltRes.LastModified = Buf.st_mtime;
	72	AltRes.IMSHit = false;
	73	if (Itm->LastModified == Buf.st_mtime && Itm->LastModified != 0)
	74	AltRes.IMSHit = true;
	75
	76	URIDone(Res,&AltRes);
	77	return true;
	78	}
	79	}
	80
	81	if (Res.Filename.empty() == true)
	82	return _error->Error(_("File not found"));
	83
	84	Hashes Hash;
	85	FileFd Fd(Res.Filename, FileFd::ReadOnly);
	86	Hash.AddFD(Fd.Fd(), Fd.Size());
	87	Res.TakeHashes(Hash);
	88	URIDone(Res);
	89	return true;
	90	}
	91	/}}}/
	92
	93	int main()
	94	{
	95	setlocale(LC_ALL, "");
	96
	97	FileMethod Mth;
	98	return Mth.Run();
	99	}